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Given a uniform ring of charge, with charge q=+30E-6 C and radius 0.2 m.
1. Find the magnitude of linear charge density for the ring?
2. Find electric potential at a point 0.5m directly to the right of the ring's center?
strikes the wooden block of a ballistic pendulum, as shown. The block has a mass of 270 g. Find out the speed of the bullet/block combination immediately after the collision.
A 1.0 mCi source of Phosphorus called P-32, a beta emitter, is imlanted in a tumor where it is to administer 36 Gy. The half-life is 14.3 days and 1 mCi delivers about 10 mGy/min/ Approximately how long should the source remain implanted?
How many kcal of heat must be withdrawn from 4.56 kg of steam at 125°C to change it to ice at -44.5°C.
A single electron orbits a lithium nucleus that contains three protons (+3e). The radius of the orbit is 1.76 10-11 m. Determine the kinetic energy of the electron.
You throw a 13.0N rock into the air from ground level and observe that, when it is 13.0m high, Use the work-energy principle to find the maximum height the rock will reach
A surface completely surrounds a 4.5 × 10-6 C charge. Find the electric flux through this surface when the surface is (a) a sphere with a radius of 0.66 m, (b) a sphere with a radius of 0.30 m, and (c) a cube with edges that are 0.65 m long.
Scientists in a laboratory produce a sound wave in a simulated environment (air) with a velocity of 448 m/s.
A small glass bead charged to 7.4nC is in the plane that bisects a thin, uniformly charged, 10-cm-long glass rod, What is the total charge on the rod
The catapult on an aircraft carrier can take an aircraft from 0 to 197 mph ( the launch speed) in 5 Seconds, at which time the aircraft launches
A diffraction grating has 4272 lines/cm. Calculate the width of the dark area between the first and second order spectra on a screen 3.3 m away
To fight a fire on the fourth floor of a building, firefighters want to use a hose of diameter 6.31cm to shoot 925 liters/minute of water to a height of 11m, What pressure must the water have inside the hose
An electric dipole of dipole moment 4.5 x 10-9 C·m is in a 250 N/C electric field, what is the potential energy
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